A 



LEGEND 

 TSUNAMIS IN a NEAR JAPAN, 

 1923- 1957, [lIDA, 195?] 

 (ACTUAL OBSERVED HEIGHTS 

 INDICATED AS -^ ) 



RAT IS., ALEUTIANS, FEB. 4, 1955 

 ALASKA, MARCH 27, 1964 



5.5 6.0 6.5 70 7.5 8.0 8.5 



EARTHQUAKE MAGNITUDE, M ( RICHTER SCALE ) 



9.0 



Figure Ul Heights of Tsunamis to "be expected at a Coast from Submarine 

 Earthquakes of varying magnitude within a range of about 

 500 miles (adapted from Wilson, I96U) 



64 



